/* ===========================================================
   NoteItUP — Material 3 (Dark, Deep Purple + Teal)
   Sibling theme to romreviewer.com — vanilla, single stylesheet
   =========================================================== */

/* ---------- Design Tokens ---------- */
:root {
  --md-primary:           #D0BCFF;
  --md-on-primary:        #381E72;
  --md-primary-container: #4F378B;
  --md-on-primary-container: #EADDFF;

  --md-secondary:         #CCC2DC;
  --md-on-secondary:      #332D41;
  --md-secondary-container: #4A4458;
  --md-on-secondary-container: #E8DEF8;

  --md-tertiary:          #03DAC6;
  --md-on-tertiary:       #003733;
  --md-tertiary-container: #00504A;
  --md-on-tertiary-container: #7FF7E9;

  --md-error:             #F2B8B5;
  --md-error-container:   #8C1D18;
  --md-on-error-container: #F9DEDC;

  --md-background:        #141218;
  --md-on-background:     #E6E0E9;
  --md-surface:           #141218;
  --md-on-surface:        #E6E0E9;
  --md-surface-variant:   #49454F;
  --md-on-surface-variant: #CAC4D0;
  --md-surface-container-low:     #1D1B20;
  --md-surface-container:         #211F26;
  --md-surface-container-high:    #2B2930;
  --md-surface-container-highest: #36343B;

  --md-outline:           #938F99;
  --md-outline-variant:   #49454F;

  --elev-1: 0 1px 2px rgba(0,0,0,.30), 0 1px 3px 1px rgba(0,0,0,.15);
  --elev-2: 0 1px 2px rgba(0,0,0,.30), 0 2px 6px 2px rgba(0,0,0,.15);
  --elev-3: 0 1px 3px rgba(0,0,0,.30), 0 4px 8px 3px rgba(0,0,0,.15);
  --elev-4: 0 2px 3px rgba(0,0,0,.30), 0 6px 10px 4px rgba(0,0,0,.15);
  --elev-5: 0 4px 4px rgba(0,0,0,.30), 0 8px 12px 6px rgba(0,0,0,.15);

  --shape-xs: 4px;
  --shape-sm: 8px;
  --shape-md: 12px;
  --shape-lg: 16px;
  --shape-xl: 28px;
  --shape-full: 999px;

  --motion-fast:   150ms cubic-bezier(.2,0,0,1);
  --motion-medium: 250ms cubic-bezier(.2,0,0,1);
  --motion-slow:   400ms cubic-bezier(.2,0,0,1);
  --motion-emph:   500ms cubic-bezier(.05,.7,.1,1);

  --container-max: 1200px;
  --gutter:        24px;
  --topbar-h:      64px;
}

/* ---------- Reset / Base ---------- */
*,*::before,*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: 'Roboto', system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--md-background);
  color: var(--md-on-background);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--md-primary);
  text-decoration: none;
  transition: color var(--motion-fast);
}
a:hover { color: var(--md-tertiary); }

button { font-family: inherit; }

.material-symbols-rounded {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
}

h1, h2, h3 { margin: 0 0 .5em; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section {
  padding: 96px 0;
  position: relative;
}

@media (max-width: 768px) {
  section { padding: 64px 0; }
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header h2 {
  font-size: clamp(2rem, 3vw + 1rem, 2.5rem);
  font-weight: 500;
  background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-tertiary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 8px;
}
.section-header p {
  color: var(--md-on-surface-variant);
  font-size: 1rem;
  margin: 0;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Top App Bar ---------- */
.m3-top-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  z-index: 100;
  background: rgba(20, 18, 24, 0);
  backdrop-filter: blur(0);
  transition: background var(--motion-medium), backdrop-filter var(--motion-medium), box-shadow var(--motion-medium);
}
.m3-top-bar.scrolled {
  background: rgba(33, 31, 38, .85);
  backdrop-filter: saturate(180%) blur(14px);
  box-shadow: var(--elev-2);
}
.m3-top-bar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.m3-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--md-on-surface);
  letter-spacing: .01em;
  flex-shrink: 0;
}
.m3-brand .brand-logo {
  width: 36px; height: 36px;
  border-radius: 10px;
  padding: 2px;
  background: linear-gradient(135deg, var(--md-primary), var(--md-tertiary));
  box-shadow: 0 0 24px rgba(208,188,255,.35);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.m3-brand .brand-logo img {
  width: 100%; height: 100%;
  border-radius: 8px;
  object-fit: cover;
  background: var(--md-surface);
}
.m3-brand .brand-name { line-height: 1; }

@media (max-width: 360px) {
  .m3-brand .brand-name { display: none; }
}

.m3-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.m3-nav a {
  position: relative;
  padding: 10px 16px;
  border-radius: var(--shape-full);
  color: var(--md-on-surface-variant);
  font-size: .9rem;
  font-weight: 500;
  transition: color var(--motion-fast), background var(--motion-fast);
}
.m3-nav a:hover {
  color: var(--md-on-surface);
  background: rgba(208,188,255,.08);
}
.m3-nav a.parent-link {
  color: var(--md-primary);
}
.m3-nav a.parent-link::before {
  content: "↗ ";
  opacity: .6;
}
.m3-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--md-on-surface);
  width: 48px; height: 48px;
  border-radius: 50%;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.m3-menu-btn:hover { background: rgba(208,188,255,.08); }

@media (max-width: 768px) {
  .m3-nav {
    position: fixed;
    top: var(--topbar-h);
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--md-surface-container-high);
    border-radius: var(--shape-md);
    box-shadow: var(--elev-3);
    padding: 8px;
    min-width: 220px;
    transform: translateY(-12px) scale(.96);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--motion-medium), opacity var(--motion-medium);
  }
  .m3-nav.open {
    transform: translateY(0) scale(1);
    opacity: 1;
    pointer-events: auto;
  }
  .m3-nav a { padding: 14px 20px; }
  .m3-menu-btn { display: inline-flex; }
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--topbar-h) + 48px) var(--gutter) 64px;
  position: relative;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .35;
  z-index: 0;
  pointer-events: none;
  animation: float 18s ease-in-out infinite;
}
.hero::before {
  background: var(--md-primary-container);
  top: -200px; left: -150px;
}
.hero::after {
  background: var(--md-tertiary-container);
  bottom: -200px; right: -150px;
  animation-delay: -9s;
}
@keyframes float {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(40px,-30px) scale(1.1); }
}

.hero .grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(208,188,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(208,188,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 880px;
}

.hero-logo {
  width: 132px; height: 132px;
  margin: 0 auto 32px;
  border-radius: 32px;
  padding: 4px;
  background: linear-gradient(135deg, var(--md-primary), var(--md-tertiary));
  box-shadow: var(--elev-4), 0 0 80px rgba(208,188,255,.30);
}
.hero-logo img {
  width: 100%; height: 100%;
  border-radius: 28px;
  object-fit: cover;
  background: var(--md-surface);
}

.hero h1 {
  font-size: clamp(2.75rem, 7vw + 1rem, 5rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -.02em;
  margin: 0 0 16px;
  background: linear-gradient(180deg, var(--md-on-surface) 0%, var(--md-on-surface-variant) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: clamp(1rem, 1vw + .8rem, 1.25rem);
  color: var(--md-on-surface-variant);
  max-width: 640px;
  margin: 0 auto 32px;
}

.role-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Chips ---------- */
.m3-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 14px;
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container);
  color: var(--md-on-surface-variant);
  border-radius: var(--shape-sm);
  font-size: .8125rem;
  font-weight: 500;
  letter-spacing: .01em;
  transition: background var(--motion-fast), border-color var(--motion-fast), color var(--motion-fast);
}
.m3-chip:hover {
  border-color: var(--md-primary);
  color: var(--md-on-surface);
}
.m3-chip .material-symbols-rounded { font-size: 16px; }

.m3-chip.assist {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  border-color: transparent;
}
.m3-chip.tonal {
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
  border-color: transparent;
}

/* ---------- Buttons ---------- */
.m3-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--shape-full);
  border: none;
  font-size: .9375rem;
  font-weight: 500;
  letter-spacing: .01em;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  transition: box-shadow var(--motion-fast), background var(--motion-fast), transform var(--motion-fast);
  overflow: hidden;
  white-space: nowrap;
}
.m3-btn:active { transform: scale(.98); }

.m3-btn.filled {
  background: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--elev-1);
}
.m3-btn.filled:hover {
  background: color-mix(in srgb, var(--md-primary) 92%, white);
  box-shadow: var(--elev-2);
}

.m3-btn.tonal {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}
.m3-btn.tonal:hover {
  background: color-mix(in srgb, var(--md-secondary-container) 88%, var(--md-primary));
  box-shadow: var(--elev-1);
}

.m3-btn.outlined {
  background: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline);
}
.m3-btn.outlined:hover {
  background: rgba(208,188,255,.08);
  border-color: var(--md-primary);
}

.m3-btn.text {
  background: transparent;
  color: var(--md-primary);
  padding: 0 12px;
}
.m3-btn.text:hover {
  background: rgba(208,188,255,.08);
}

.m3-btn .material-symbols-rounded { font-size: 18px; }

.m3-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--rx,50%) var(--ry,50%), currentColor 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--motion-medium);
  pointer-events: none;
}
.m3-btn:hover::after { opacity: .08; }
.m3-btn:active::after { opacity: .16; }

/* ---------- Features grid (icon-led cards) ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--shape-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--motion-medium), box-shadow var(--motion-medium), border-color var(--motion-medium);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--elev-3);
  border-color: var(--md-primary);
}
.feature-card .icon {
  width: 48px; height: 48px;
  border-radius: var(--shape-md);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--motion-medium), color var(--motion-medium);
}
.feature-card .icon .material-symbols-rounded { font-size: 26px; }
.feature-card:hover .icon {
  background: linear-gradient(135deg, var(--md-primary), var(--md-tertiary));
  color: var(--md-on-primary);
}
.feature-card h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--md-on-surface);
}
.feature-card p {
  margin: 0;
  color: var(--md-on-surface-variant);
  font-size: .9rem;
  line-height: 1.5;
}

/* ---------- Screenshot showcase (phone mockups) ---------- */
.shots {
  background: var(--md-surface-container-low);
  border-top: 1px solid var(--md-outline-variant);
  border-bottom: 1px solid var(--md-outline-variant);
}
.shots-scroll {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 16px 4px 32px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--md-outline-variant) transparent;
}
.shots-scroll::-webkit-scrollbar { height: 8px; }
.shots-scroll::-webkit-scrollbar-track { background: transparent; }
.shots-scroll::-webkit-scrollbar-thumb {
  background: var(--md-outline-variant);
  border-radius: var(--shape-full);
}
.shot {
  flex: 0 0 auto;
  width: 260px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.shot-frame {
  width: 100%;
  padding: 8px;
  background: linear-gradient(160deg, var(--md-surface-container-highest), var(--md-surface-container));
  border: 1px solid var(--md-outline-variant);
  border-radius: 36px;
  box-shadow: var(--elev-4), 0 0 60px rgba(208,188,255,.10);
  transition: transform var(--motion-medium), box-shadow var(--motion-medium);
}
.shot-frame img {
  width: 100%;
  border-radius: 28px;
  display: block;
}
.shot:hover .shot-frame {
  transform: translateY(-6px);
  box-shadow: var(--elev-5), 0 0 80px rgba(208,188,255,.20);
}
.shot-caption {
  text-align: center;
  color: var(--md-on-surface-variant);
  font-size: .875rem;
  font-weight: 500;
}

/* ---------- AI tools grid ---------- */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}
@media (max-width: 768px) { .ai-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 360px) { .ai-grid { grid-template-columns: 1fr; } }

.ai-tile {
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--shape-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  transition: border-color var(--motion-medium), transform var(--motion-medium), background var(--motion-medium);
}
.ai-tile:hover {
  border-color: var(--md-tertiary);
  transform: translateY(-2px);
  background: var(--md-surface-container-high);
}
.ai-tile .icon {
  width: 36px; height: 36px;
  border-radius: var(--shape-sm);
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.ai-tile .icon .material-symbols-rounded { font-size: 20px; }
.ai-tile span.label {
  font-size: .9375rem;
  font-weight: 500;
  color: var(--md-on-surface);
}

.brainstorm-card {
  background:
    radial-gradient(circle at 0% 0%, rgba(208,188,255,.10) 0%, transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(3,218,198,.10) 0%, transparent 55%),
    var(--md-surface-container);
  border: 1px solid var(--md-primary);
  border-radius: var(--shape-lg);
  padding: 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 32px;
}
.brainstorm-card .icon {
  width: 56px; height: 56px;
  border-radius: var(--shape-md);
  background: linear-gradient(135deg, var(--md-primary), var(--md-tertiary));
  color: var(--md-on-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brainstorm-card .icon .material-symbols-rounded { font-size: 28px; }
.brainstorm-card h3 {
  margin: 0 0 6px;
  font-size: 1.1875rem;
  font-weight: 500;
  color: var(--md-on-surface);
}
.brainstorm-card p {
  margin: 0;
  color: var(--md-on-surface-variant);
  font-size: .9375rem;
  line-height: 1.55;
}
@media (max-width: 480px) {
  .brainstorm-card { flex-direction: column; padding: 20px; }
}

.byok-note {
  text-align: center;
  color: var(--md-on-surface-variant);
  font-size: .875rem;
  max-width: 720px;
  margin: 0 auto 16px;
}
.byok-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

/* ---------- Privacy deep-dive section ---------- */
.priv {
  background: var(--md-surface-container-low);
  border-top: 1px solid var(--md-outline-variant);
  border-bottom: 1px solid var(--md-outline-variant);
}
.priv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto 40px;
}
.priv-card {
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  padding: 28px;
  border: 1px solid var(--md-outline-variant);
  transition: border-color var(--motion-medium), transform var(--motion-medium);
}
.priv-card:hover {
  border-color: var(--md-primary);
  transform: translateY(-2px);
}
.priv-card.featured {
  background:
    radial-gradient(circle at 0% 0%, rgba(208,188,255,.12) 0%, transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(3,218,198,.10) 0%, transparent 55%),
    var(--md-surface-container);
  border-color: var(--md-primary);
}
.priv-card.featured .icon {
  background: linear-gradient(135deg, var(--md-primary), var(--md-tertiary));
  color: var(--md-on-primary);
}
.priv-card .icon {
  width: 48px; height: 48px;
  border-radius: var(--shape-md);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.priv-card .icon .material-symbols-rounded { font-size: 24px; }
.priv-card h3 {
  font-size: 1.125rem;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--md-on-surface);
}
.priv-card p {
  color: var(--md-on-surface-variant);
  font-size: .9rem;
  margin: 0;
  line-height: 1.5;
}

.priv-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

/* ---------- Download section ---------- */
.download-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.dl-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.dl-row .m3-btn { height: 56px; padding: 0 28px; font-size: 1rem; }
.dl-meta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--md-on-surface-variant);
  font-size: .8125rem;
  margin-top: 16px;
}
.dl-meta span { display: inline-flex; align-items: center; gap: 4px; }
.dl-meta .dot { color: var(--md-outline); }

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--shape-md);
  overflow: hidden;
  transition: border-color var(--motion-medium);
}
.faq-item[open] { border-color: var(--md-primary); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-weight: 500;
  font-size: 1rem;
  color: var(--md-on-surface);
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "expand_more";
  font-family: 'Material Symbols Rounded';
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  font-size: 24px;
  color: var(--md-on-surface-variant);
  transition: transform var(--motion-medium);
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--md-primary); }
.faq-item .faq-body {
  padding: 0 24px 20px;
  color: var(--md-on-surface-variant);
  font-size: .9375rem;
  line-height: 1.6;
}
.faq-item .faq-body a { font-weight: 500; }

/* ---------- Footer ---------- */
.footer {
  background: var(--md-surface-container-low);
  border-top: 1px solid var(--md-outline-variant);
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}
.footer h4 {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--md-on-surface-variant);
  margin: 0 0 12px;
  font-weight: 600;
}
.footer p, .footer a { font-size: .95rem; color: var(--md-on-surface); margin: 0; }
.footer a:hover { color: var(--md-primary); }
.footer .col-links { display: flex; flex-direction: column; gap: 8px; }
.footer .brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.footer .brand-row img {
  width: 40px; height: 40px;
  border-radius: 10px;
}
.footer .brand-row strong { font-size: 1.0625rem; }
.footer .tagline { color: var(--md-on-surface-variant); font-size: .875rem; line-height: 1.5; }

.social-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.social-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--md-on-surface);
  transition: background var(--motion-fast), border-color var(--motion-fast), transform var(--motion-fast);
}
.social-btn:hover {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: var(--md-primary);
  transform: translateY(-2px);
}
.social-btn svg { width: 20px; height: 20px; fill: currentColor; }

.copyright {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface-variant);
  font-size: .8125rem;
}

/* ---------- FAB scroll-to-top ---------- */
.m3-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: var(--shape-lg);
  border: none;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--elev-3);
  z-index: 50;
  opacity: 0;
  transform: translateY(20px) scale(.8);
  pointer-events: none;
  transition: opacity var(--motion-medium), transform var(--motion-medium), box-shadow var(--motion-fast);
}
.m3-fab.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.m3-fab:hover { box-shadow: var(--elev-4); }
.m3-fab .material-symbols-rounded { font-size: 24px; }

/* ---------- Reveal animation (only when JS is active; visible by default) ---------- */
body.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--motion-slow), transform var(--motion-slow);
}
body.js .reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.reveal:nth-child(2) { transition-delay: .05s; }
.reveal:nth-child(3) { transition-delay: .10s; }
.reveal:nth-child(4) { transition-delay: .15s; }
.reveal:nth-child(5) { transition-delay: .20s; }
.reveal:nth-child(6) { transition-delay: .25s; }
.reveal:nth-child(7) { transition-delay: .30s; }
.reveal:nth-child(8) { transition-delay: .35s; }

/* ---------- Accessibility / Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 3px solid var(--md-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Small screens ---------- */
@media (max-width: 480px) {
  :root { --gutter: 16px; }
  .hero-logo { width: 108px; height: 108px; border-radius: 26px; }
  .hero-logo img { border-radius: 22px; }
  .shot { width: 220px; }
  .m3-fab { bottom: 16px; right: 16px; width: 52px; height: 52px; }
  .brainstorm-card { padding: 20px; }
  .priv-card { padding: 22px; }
  .faq-item summary { padding: 16px 20px; font-size: .9375rem; }
  .faq-item .faq-body { padding: 0 20px 18px; }
}